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Practical guidance for retrofit and energy assessment revision.
MVHR and ERV Grille Placement: Where to Put Supply and Extract in an Airtight Home
Where to put supply and extract grilles in an airtight home, how to set whole-house ventilation rates, and why fan sizing needs boost headroom.
Retrofit Ventilation Systems That Fit Existing Homes: Cascade Supply and Room-by-Room Extract
How two innovative ventilation strategies solve retrofit install problems, and what Retrofit Assessors must check when ventilation meets old fabric.
PAS 2035 for Traditional Buildings: Risk Paths, BS 7913 and Competence
How PAS 2035 defines traditional buildings, why a risk-based approach replaces fabric first, and which retrofit roles need traditional building qualifications.
How to Raise an EPC Rating From D to C: What Landlords Do and What Assessors Must Verify
A DEA's guide to the measures landlords use to lift an EPC from D to C — TRVs, boilers and loft insulation — and how RdSAP actually scores them.
Retrofitting to Passive House Standards: EnerPHit Explained for Retrofit Professionals
EnerPHit explained for UK retrofit professionals: heat demand targets, airtightness, insulation risk, MVHR and deep retrofit under PAS 2035.
External Wall Insulation Cold Bridges: Why Moisture Management Decides Whether EWI Works
Why the 5% of a solid wall that EWI cannot cover turns into mould, and what PAS 2030 installers must know about cold bridges, ventilation and moisture.
Damp, Mould and Humidity: What Eight Real Fixes Teach Retrofit Professionals
A 1930s bungalow cut humidity from 84% to 63% using eight ventilation fixes — here is what each one teaches about PAS 2035 ventilation assessment.
Day in the Life of a Retrofit Assessor: Role, Reports and Route In
What a PAS 2035 Retrofit Assessor actually does day to day — the energy, occupancy and condition reports, and how to qualify from DEA.
PAS 2035 and PAS 2030 Explained: The Six Stages, Six Roles and Risk Pathways
A clear walkthrough of PAS 2035 and PAS 2030 — the six retrofit stages, the six roles, risk pathways A to C, and what the Retrofit Coordinator actually does.
The Ultimate Guide to an EPC: What Happens on a Domestic Energy Assessment
A walk-through of a real EPC survey — construction, heating, glazing, lighting, meters and floor plans — and how each stage feeds the RdSAP rating.
Air Source Heat Pumps and Air-to-Air Systems in UK Retrofit
What retrofit coordinators and DEAs need to know about air-to-air heat pumps, mini splits, and how they sit within PAS 2035 and RdSAP.
External Wall Insulation: What Retrofit Installers Must Get Right
A PAS 2030 revision guide to EWI: substrate prep, adhesive mixing, bonding patterns, mechanical fixings, beads, base coat and render finish.
Damp, Mould and Condensation: A Complete Guide for Retrofit Professionals
Understand relative humidity, dew points, and ventilation strategies — the moisture science every PAS 2035 retrofit professional must master.
Building Physics Revision for Retrofit Exams
A compact guide to fabric, moisture, ventilation, and heat-loss revision.
DEA Exam Workflow Revision Guide
A workflow-led way to prepare for Domestic Energy Assessor questions.
How to Approach Multi-Answer Retrofit Questions
Techniques for questions where more than one answer is correct.
How to Plan Retrofit Assessor Revision
A practical topic-by-topic revision plan for Retrofit Assessor learners.
Retrofit Coordinator Level 5 Topic Map
How to split Retrofit Coordinator revision across the ten app topics.
Using Short Practice Sessions Effectively
How to use short quizzes without losing topic coverage.